NL184066B - Process for polymerizing tetrahydrofuran or alkyl substituted TETRAHYDROFURAN TO poly (tetramethylene ether) glycol ESTER END GROUPS, PROCESS FOR PRODUCING poly (tetramethylene ether) glycol from THUS PREPARED poly (tetramethylene ether) glycol ester AND moldings MADE BY APPLYING THE THUS PREPARED POLY (TETRAMETHYLENE ETHER) GLYCOL OR ITS ESTER. - Google Patents

Process for polymerizing tetrahydrofuran or alkyl substituted TETRAHYDROFURAN TO poly (tetramethylene ether) glycol ESTER END GROUPS, PROCESS FOR PRODUCING poly (tetramethylene ether) glycol from THUS PREPARED poly (tetramethylene ether) glycol ester AND moldings MADE BY APPLYING THE THUS PREPARED POLY (TETRAMETHYLENE ETHER) GLYCOL OR ITS ESTER.

Info

Publication number
NL184066B
NL184066B NL7703462A NL7703462A NL184066B NL 184066 B NL184066 B NL 184066B NL 7703462 A NL7703462 A NL 7703462A NL 7703462 A NL7703462 A NL 7703462A NL 184066 B NL184066 B NL 184066B
Authority
NL
Netherlands
Prior art keywords
tetramethylene ether
glycol
poly
ester
tetrahydrofuran
Prior art date
Application number
NL7703462A
Other languages
Dutch (nl)
Other versions
NL184066C (en
NL7703462A (en
Original Assignee
Du Pont
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Du Pont filed Critical Du Pont
Publication of NL7703462A publication Critical patent/NL7703462A/en
Publication of NL184066B publication Critical patent/NL184066B/en
Application granted granted Critical
Publication of NL184066C publication Critical patent/NL184066C/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
    • C08G65/06—Cyclic ethers having no atoms other than carbon and hydrogen outside the ring
    • C08G65/16—Cyclic ethers having four or more ring atoms
    • C08G65/20—Tetrahydrofuran

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyethers (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
NL7703462A 1976-03-31 1977-03-30 Process for polymerizing tetrahydrofuran or alkyl substituted TETRAHYDROFURAN TO poly (tetramethylene ether) glycol ESTER END GROUPS, PROCESS FOR PRODUCING poly (tetramethylene ether) glycol from THUS PREPARED poly (tetramethylene ether) glycol ester AND moldings MADE BY APPLYING THE THUS PREPARED POLY (TETRAMETHYLENE ETHER) GLYCOL OR ITS ESTER. NL184066C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US67255576A 1976-03-31 1976-03-31
US67255776A 1976-03-31 1976-03-31
US67255676A 1976-03-31 1976-03-31
US75121176A 1976-12-16 1976-12-16
US76751077A 1977-02-14 1977-02-14

Publications (3)

Publication Number Publication Date
NL7703462A NL7703462A (en) 1977-10-04
NL184066B true NL184066B (en) 1988-11-01
NL184066C NL184066C (en) 1989-04-03

Family

ID=27542063

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7703462A NL184066C (en) 1976-03-31 1977-03-30 Process for polymerizing tetrahydrofuran or alkyl substituted TETRAHYDROFURAN TO poly (tetramethylene ether) glycol ESTER END GROUPS, PROCESS FOR PRODUCING poly (tetramethylene ether) glycol from THUS PREPARED poly (tetramethylene ether) glycol ester AND moldings MADE BY APPLYING THE THUS PREPARED POLY (TETRAMETHYLENE ETHER) GLYCOL OR ITS ESTER.

Country Status (7)

Country Link
BE (1) BE853028A (en)
DE (2) DE2709280C2 (en)
FR (1) FR2357591A1 (en)
GB (1) GB1575529A (en)
IT (1) IT1104560B (en)
NL (1) NL184066C (en)
PL (1) PL114086B1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2964245D1 (en) * 1978-03-16 1983-01-20 Du Pont Polyurethanes prepared with tetrahydrofuran-alkylene oxide polymerizates having low oligomeric cyclic ether content, processes for preparing the same, and articles and fibers of the polyurethanes
FR2429802A1 (en) * 1978-06-30 1980-01-25 Du Pont Prepn. of co:polyether glycol! with terminal ester gps. - by copolymerising THF with alkylene oxide or cyclic acetal using (co)polymer of unsatd. monomer(s) as catalyst
DE3004328A1 (en) * 1980-02-06 1981-08-13 Bayer Ag, 5090 Leverkusen POLYTETRAHYDROFURANE WITH ACRYLATE OR METHACRYLATE END GROUPS
DE3013927A1 (en) * 1980-04-11 1981-10-22 Basf Ag, 6700 Ludwigshafen METHOD FOR PRODUCING POLYMERS CONTAINING HYDROXYL GROUPS
US4393199A (en) 1981-05-12 1983-07-12 S R I International Cationic polymerization
DE3410069A1 (en) * 1984-03-20 1985-10-03 Basf Ag, 6700 Ludwigshafen METHOD FOR PRODUCING POLYMERS CONTAINING HYDROXYL GROUPS
DE4325023A1 (en) * 1993-07-26 1995-02-02 Basf Ag Process for the preparation of polytetrahydrofuran or tetrahydrofuran-alkylene oxide copolymers
DE19527532A1 (en) * 1995-07-27 1997-01-30 Basf Ag Process for the preparation of polyoxytetramethylene glycol
DE19719875A1 (en) * 1997-05-12 1998-11-19 Basf Ag Process for the polymerization of cyclic ethers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1073230A (en) * 1962-11-23 1967-06-21 Eastman Kodak Co Preparation of poly(tetramethylene glycol) and also of elastomeric polyesters formed thereform
JPS5232677B2 (en) * 1972-12-29 1977-08-23
DE2445961C2 (en) * 1974-09-26 1983-12-01 Basf Ag, 6700 Ludwigshafen Process for the polymerization of tetrahydrofuran

Also Published As

Publication number Publication date
PL114086B1 (en) 1981-01-31
GB1575529A (en) 1980-09-24
DE2760272A1 (en) 1985-05-09
BE853028A (en) 1977-09-30
NL184066C (en) 1989-04-03
FR2357591A1 (en) 1978-02-03
DE2709280C2 (en) 1986-08-21
NL7703462A (en) 1977-10-04
PL197041A1 (en) 1978-01-02
IT1104560B (en) 1985-10-21
DE2709280A1 (en) 1977-10-06
DE2760272C2 (en) 1987-04-16
FR2357591B1 (en) 1981-06-26

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
V1 Lapsed because of non-payment of the annual fee